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| 气相色谱-三重四级杆串联质谱法检测聚氨酯橡胶中4，4′-二氨基-3，3′-二氯二苯甲烷的含量 |
| Determination of Content of 4，4′-Diamino-3，3′-Dichlorodiphenylmethane in Polyurethane Rubber by GC-MS/MS |
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| DOI： |
| 中文关键词: 4，4′-二氨基-3，3′-二氯二苯甲烷 气相色谱-三重四级杆串联质谱 离子对 重现性 |
| 英文关键词: 4,4′-diamino-3,3′-dichlorodiphenylmethane gas chromatography-triple quadrupole mass spectrometer ion pair reproducibility |
| 基金项目: |
| 中图分类号:TQ336；O657.7＋1/63 |
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| 中文摘要: |
| 采用气相色谱-三重四级杆串联质谱（GC-MS/MS）法测定聚氨酯橡胶中的4，4′-二氨基-3，3′-二氯二苯甲烷（MOCA）的含量。结果表明，在碰撞能量为20 eV下，以质核比（m/z）为265和229的离子对为定性离子对、m/z为265和195的离子对为定量离子对，将MOCA在（60±5） ℃下用丙酮超声提取60 min，用GC-MS/MS对提取液进行测试，MOCA含量在0.1～5.0 mg·L-1范围内，其响应强度与标准溶液浓度的线性关系良好，检出限为0.03 mg·L-1，定量限为0.1 mg·L-1，回收率为90%～110%，相对标准偏差小于6%。本方法测试结果稳定，灵敏度高，重现性好。 |
| 英文摘要: |
| The content of 4，4'-diamino-3，3'-dichlorodiphenylmethane（MOCA） in polyurethane rubber was determined by gas chromatography-triple quadrupole mass spectrometry（GC-MS/MS）.MOCA was extracted by acetone under ultrasonication at （60±5） ℃ for 60 min，and the extract was tested by GC-MS/MS.The results showed that the relationship between response intensity and standard solution concentration was linear when the MOCA content was in the range of 0.1～5.0 mg·L-1，the ion pair with mass ratio （m/z） of 265 and 229 was the qualitative ion pair and the ion pair with m/z of 265 and 195 was the quantitative ion pair at the collision energy of 20 eV.The detection limit was 0.03 mg·L-1，the limit of quantification was 0.1 mg·L-1，the recovery was 90%～110%，and the relative standard deviation was less than 6%.The method showed the advantages of stable test results，high sensitivity and good reproducibility. |
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